noccr onccr ncocr cnocr ocncr concr noccr onccr ncocr cnocr ocncr concr nccor cncor nccor cncor ccnor ccnor occnr cocnr occnr cocnr cconr cconr nocrc oncrc ncorc cnorc ocnrc conrc norcc onrcc nrocc rnocc orncc roncc ncroc cnroc nrcoc rncoc crnoc rcnoc ocrnc cornc orcnc rocnc cronc rconc nocrc oncrc ncorc cnorc ocnrc conrc norcc onrcc nrocc rnocc orncc roncc ncroc cnroc nrcoc rncoc crnoc rcnoc ocrnc cornc orcnc rocnc cronc rconc nccro cncro nccro cncro ccnro ccnro ncrco cnrco nrcco rncco crnco rcnco ncrco cnrco nrcco rncco crnco rcnco ccrno ccrno crcno rccno crcno rccno occrn cocrn occrn cocrn ccorn ccorn ocrcn corcn orccn roccn crocn rcocn ocrcn corcn orccn roccn crocn rcocn ccron ccron crcon rccon crcon rccon
Note: these 'words' (valid or invalid) are all the permutations of the word noccr. These words are obtained by scrambling the letters in noccr.